A building has a square courtyard that has a length of 28 meters. In the center of the courtyard, there is a fountain whose radius is 13 meters. The building owner wants to cover the area around the fountain with grass. What is the area of the courtyard that will be covered with grass?A.253.34 square meters.530.66 square meters.702.36 square meters.784 square meters

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.